load redis and mqtt only from env

apps/abstraction/main.py

@@ -391,9 +391,19 @@ async def async_main() -> None:
     validate_devices(devices)
     logger.info(f"Loaded {len(devices)} device(s) from configuration")
     
-    # Get Redis URL from config or environment variable or use default
-    redis_config = config.get("redis", {})
-    redis_url = redis_config.get("url") or os.environ.get("REDIS_URL", "redis://localhost:6379/0")
+    # Build Redis URL from environment variables or config or use default
+    redis_host = os.environ.get("REDIS_HOST")
+    redis_port = os.environ.get("REDIS_PORT")
+    redis_db = os.environ.get("REDIS_DB")
+    
+    if redis_host and redis_port and redis_db:
+        redis_url = f"redis://{redis_host}:{redis_port}/{redis_db}"
+        logger.info(f"Using Redis from environment variables: {redis_url}")
+    else:
+        # Fallback to config file
+        redis_config = config.get("redis", {})
+        redis_url = redis_config.get("url") or "redis://localhost:6379/0"
+        logger.info(f"Using Redis from config file: {redis_url}")
     
     # Connect to Redis with retry
     redis_client = await get_redis_client(redis_url)